could i get some help with these geometry questions

Question

write the equation of a circle if the ends of the diameter are (17,-12) and (5,-4)

Find the length of the segment with endpoints of (-2, 5) and (-3, -1). If necessary round to the nearest hundredths.

line segment CB is the diameter of circle A. line segment AB=4x+3 and line segment AC=6x-9. find the length of the diameter. (with this question there's an image of a blank circle)

Answer 1

The midpoint of (17, -12) and (5, -4) is the center of the circle.

One-half of the distance between (16, -12) and (5, -4) is the radius

Use the distance formula (Algebra 1) to determine the distance between (-2, 5) and (-3, -1).

Draw and label a diagram!

AB = BC

Substitute and solve for x and answer.